namespace ConsoleApp3._1021;

public class UserServiceImpl : UserService
{
    public void AddUser(string user)
    {
        Console.WriteLine("添加用户: " + user);
    }
    
    public void DeleteUser(string user)
    {
        Console.WriteLine("删除用户: " + user);
    }
    
    public void UpdateUser(string user)
    {
        Console.WriteLine("更新用户: " + user);
    }
    
    public void QueryUser(string user)
    {
        Console.WriteLine("查询用户: " + user);
    }
}